Vaporizing nozzle for humidifying apparatus



April 16r 1929#l I n I G. w. DARCY l 1,709,064

VAPORIZING NOZZLE FOR HUMIDIFYING APPARATUS Filed Aug. 15, 1926 I wurgen/a.- eorgWD/rcy,

Patented Apr. 16, 1929.

UNITED STATES GEORGE DARCY, OF NEWTON, MASSACHUSETTS.

VAPORIZING NOZZLE FORI-IUMIDIFYING APPARATUS.

Application iled August 13, 1926.' Serial No. 129,068.

This invention relates to humidifying,l apparatus ltor general use, and particularly for textile, mills, and its object is to provide an improved construction oia spray nozzle havingr, among others, theadvantages hereinafter pointed out.

lin the drawings ot one embodiment of my' invention selected ior illustration and description,

Fig. 1 is a plan View of the novel ,mixing and vaporizing nozzle used `in, conjunction with humidiiyinfg apparatus similar` to that disclosed in my Letters Patent No. 1,553,370.

Figi'. 2 a vertical section on the lline 2-2, Fig. 1, also partly brokenawayg y y Fi 3 a vertical section detail of the spraying nozzle on theline 3-f3,Fig. 1, on a larger scale;

Fig. l an end view of the nozzle; and Fig'. 5 a side view of a inodilied form ot the vaporizing member. 1

Fig. 6 is a section of the hollow ball vaporizing member taken on line 6 6 of Fig. 5.

1With reference rst to Figs 1 and 2, my invention comprises a spray nozzle for use in humidifying apparatus including a water control valve much like that shown in my Letters Patent No.i1,553,370, issued September 15, 1925, Such valve comprises the body 1 with a mixing and pressure chamber 2, the body having a threaded nipple 3 providingv an air passage tat one point, and a nipple 5 with a water passage 6 at another point on its side. The nipple 5 is extended Within the chamber to a substantially central point by means of a neck 7 and provides a water admission port S.

The body 1, Fig. 2, is provided with a cover S) which has a threaded or other suitable connection with the body and the cover is provided also with an upwardly vextended neck 10 interiorly threaded. The valve comprises also a head 12 which seats on the port 8 and is preferably provided with a rubber or other cushion member 13 as a Contact member therefor. This head 12 carries a diaphragm 14- oiE metal or other suitable material and it is secured to the head by a threaded nut 15.

rlhe diaphragm is locked tightly between the body 1 and the cover by the latter.

The head has the stem 16 which extends upwardly through an inverted cuplike spring housing or bushing member 17 having a threaded engagement With the neck 1() for the purpose 'of effecting,y and adjusting the compression oi the spring. 18 within the housing 17, `which spring seats at one end against the housing and at its opposite end on the valve head 12, by means otwhich construction the desired pressure is always maintained upon the head and diaphragm to control and time its action.

The union 20, Fig. 2, in the water line is provided with a water aperture .21 of small area and a screen 22to protect the/same irom dirt or other foreign matter thatmay iind its wayfthereto in the water or other liquid.

The body 1, Figs.` 1, 3,is also provided at suitable points with a plurality, herein two, of nozzles o1' spraying heads oi novel design. Upon anipple 23, Finlr 1, on the` body 1, is threaded, Fig. 3, a novel nozzle 24; .of elonv gated, cupshape form, having a chamber 25 to receive a hollow air and liquid mixing ball .26 ot suitable material, as metal.

l` have ioundby careful experiments and tests that such a mixing member is unusually efficient. The hollow ball is provided with a plurality oit small apertures 27 leadinpr to its interior which act to supervaporizeor vapor ize to an extreme degree the air and liquid vapor coming through the ball from the mixing chamber 2 and to sub-divide andre-miX and further vaporize the vapor stream to an unusual degree. ln addition to the function of dividing the air and water or other liquid stream coming from the chamber 2 into a large number oit small streams,the ball is kept in motion by the 'force 01" the water and air stream and consequently, the direction and continuity of the incoming stream are constantly changed and broken up with most satisfactory results. Furthermore, the nozzle is provided with a rectangular slot or water exit 28, which also aids in spreading the water and air column laterally over a large area as it leaves the nozzle.

In Fig. 5 is shown a modified torni of va porizinp; ball member 26-w`herein the aper tures 27 are rectzfmplular instead ot round. l have 'loundthat such openings in the ball are more effective and, so i'ar as I have been able to determine at this time, have the same ap parent advantage over round openings that such an opening in the nozzle 24 has over round ones 1n the nozzle. y

The operation of my apparatus will doubtless be clear from the foregoing description o'l it; The diaphragm 14 of the valve 12 is adjusted by `means et the spring 18 to resist CII the ordinary amount of Water pressure supplied, and to yield to that pressure when A Y combined with a predetermined air pressure through the passage 4 Which the particular conditions require. After Waterr has ybeen admitted to the chamber 2 by the passage 6, air of suitable pressure is admitted vthrough vthe passage 4, andv thereafter the head re- @mams raised so long asthe air. pressure 1s supplied. The air and Water are thoroughly mixed in the chamber' 2 and flow through the nozzles23'by Whichthe mixed air and Water streamis laterally spread over considerable area.

Practical value.

I have found that, with this construction, particularly With my novel sprayv nozzle I can, with from ten to fifteen pounds ofair pressure, vaporize from one third to one half ymore Water in volume yat from twelve to yeightypounds pressure according yto what is availa ble, than by any Vother construction of have knowledge. e

With this construction also, I find that the tendency of water to drip from the nozzle after the water has been shut off, 'does not exist.

My invention is not vlimited to the precise embodiment thereof herein described and illustrated.

Claims.

1 In humidifying apparatus, a spray noz- Zle having a perforated freely movable ball liquid vaporizer therein.

2. In humidifying apparatus a spray nozzle having a hollow freely movable ball liquid vaporizer and stream divider therein with rectangular openings therethrough,

8. In humidifying apparatus a sprav nozzle having therein a hall with a plurality of radially extended vaporizing passages there` through.

4. Inhumidifying apparatus a spray nozzle having therein a hollow perforated spherical movable vapor stream divider and direction changer.

In testimony' whereof, I have signed my name to this specification.

GEORGE W. DARCY. 

